Medical devices

Abstract

To provide a piece of medical equipment capable of forming a light guide path where light emitted from a light-emitting element passes through to display a power mark or alarm stop mark to display the power switch or alarm stop switch excellent in drip-proof (IPX), electrostatic discharge / surge (ESD) measures, and electromagnetic interference (EMS) measures.SOLUTION: The medical equipment has a device body with a power switch. The power switch includes: a power switch cover; a first gasket; and a first light-emitting element placed on the power switch substrate. The first gasket is interposed between the power switch cover provided at the outside of the device body and the first light-emitting element placed on the power switch substrate. The first light-emitting element is placed closer to the inside of the device than the first gasket and is formed with a first light guide path through which the light emitted from the first light-emitting element passes to the outside of the device.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to medical devices. In particular, the present invention can display the peripheral part of the power switch cover, the power mark, etc. by providing an optical path for the light generated from the light-emitting element, and has drip-proof measures, electrostatic discharge / surge (ESD) countermeasures, and electromagnetic interference susceptibility (EMS) countermeasures characteristic of medical use. It relates to excellent medical devices.

Background Art

[0002] Conventionally, for example, the device described in Patent Document 1 is known as a device for treating pain in a diseased part of a living body by irradiating the diseased part with a magnetic field to stimulate cells in the diseased part. This treatment device is configured to be portable by accommodating a high-frequency coil and a low-frequency coil in a housing in a spiral or loop shape together with a transmission circuit and a battery.

[0003] Then, this treatment device generates magnetic fields with the high-frequency coil and the low-frequency coil respectively by high-frequency signals and low-frequency signals of a certain frequency output from the transmission circuit, and irradiates the diseased part with the magnetic field by applying the housing to the diseased part of the living body to stimulate cells in the diseased part. By this stimulation, the production of neurotrophic factor groups in the cells of the diseased part is promoted, and the repair, growth, differentiation, and proliferation of the cells are promoted to treat the pain in the diseased part.

[0004] Further, Patent Document 2 discloses a system for electromagnetic induction therapy, etc., which includes one or more probes conforming to human engineering or body contours. The probe is configured to generate an electromagnetic field or magnetic field focused on a target nerve, muscle, or other body tissue positioned close to the coil. It includes one or more conductive coils, and one or more sensors are used to detect the stimulation and provide feedback regarding the effectiveness of the applied electromagnetic induction therapy. The controller is adjustable to vary the current passing through the coil and adjust the magnetic field focused on the target nerve, muscle, or other body tissue based on the feedback provided by the sensor or the patient.

Prior Art Documents

[0005] [Patent Document 1] International Publication No. 2008 / 056414 [Patent Document 2] Special Publication No. 2013-508119 [Overview of the project] [Problems that the invention aims to solve]

[0006] However, in the device described in Patent Document 1, the high-frequency output coil and the low-frequency output coil are housed together with the oscillator circuit and battery in the housing. Therefore, in order to irradiate the affected area with the magnetic field generated by these coils, it is necessary to place the housing against the affected area, which has the disadvantage of the housing being bulky and getting in the way, or getting caught on clothing and falling off the affected area.

[0007] Furthermore, the device described in Patent Document 1 is not designed so that the peripheral edge of the power switch cover and the power mark, the peripheral edge of the alarm stop switch cover and the alarm stop switch mark are displayed, and does not take into consideration the water resistance (IPX), electrostatic discharge and surge (ESD) countermeasures and electromagnetic interference (EMS) countermeasures within the housing that constitutes the device.

[0008] The sensor described in Patent Document 2 detects the electrical conduction of nerves stimulated by electromagnetic therapy, and allows for the proper discharge of moisture and sweat released from the patient's skin through ventilation holes while the electrode carrier is placed on the patient's skin. However, the sensor described in Patent Document 2 is not formed to display the periphery of the power switch cover or a power mark, and its water resistance (IPX) and the effects of electrostatic discharge caused by contact between the human body and the magnetic therapy device have not been considered.

[0009] Incidentally, one of the required performance characteristics for medical devices is water resistance. Among medical devices, magnetic therapy devices, in particular, are used in contact with the human body. Therefore, there is a possibility that water and moisture may enter the inside of a magnetic therapy device. Magnetic therapy devices that do not have water resistance will have their insulation deteriorate when water enters the inside, which can lead to ground faults and electrical leakage accidents. In particular, magnetic therapy devices equipped with a power switch or alarm stop switch have a peripheral area for pressing the power switch or alarm stop switch, and this peripheral area is prone to absorbing water and moisture. In other words, medical devices such as magnetic therapy devices equipped with a power switch or alarm stop switch require water resistance (IPX) that can prevent moisture from entering the inside and withstand long-term use of magnetic therapy.

[0010] On the other hand, static electricity is generated when the human body comes into contact with medical devices such as magnetic therapy devices, and a discharge of this static electricity occurs. The voltage generated by this phenomenon (electrostatic discharge surge (ESD)) is several thousand volts, and such high-voltage pulses can penetrate the inside of the magnetic therapy device, causing malfunction or damage to the IC circuits built into the medical device. In order to prevent static electricity from entering the inside of the magnetic therapy device, it is necessary to suppress and eliminate electrostatic discharge surges (ESD). Furthermore, magnetic therapy devices are susceptible to electromagnetic interference. Interference caused by electromagnetic interference affecting medical devices such as magnetic therapy devices adversely impacts their performance.

[0011] In other words, medical devices require measures to suppress and eliminate electrostatic discharge and surges (ESD), as well as measures to prevent electromagnetic interference (EMS). These measures are necessary for all components and locations where the human body comes into contact with the medical device. Specifically, components and locations requiring ESD and EMS measures include power switches, which are pressed by the operator to indicate whether the power is on or off when activating the medical device, and alarm stop switches, which stop alarms that are generated when the medical device detects an operational abnormality. For this reason, standards have been established for ESD and EMS measures that medical devices such as magnetic therapy devices must meet.

[0012] Furthermore, so-called "tactile switches" are used as power switches or alarm stop switches for medical devices such as magnetic therapy devices. Tactile switches can provide a "click sensation" when the operator of a medical device such as a magnetic therapy device presses the power switch or alarm stop switch. By recognizing the "click sensation" when pressing the tactile switch, the operator of the medical device such as a magnetic therapy device can confirm whether the power switch or alarm stop switch is ON or OFF. In addition, the operator of the medical device such as a magnetic therapy device can confirm that the power switch or alarm stop switch is ON by the illumination of the periphery of the power switch cover or the power mark, etc., which are indicated by light emitted from the light-emitting element built into the magnetic therapy device. The operator can also confirm that the power switch or alarm stop switch is OFF by the power mark or alarm stop mark, which are indicated by the power mark or alarm stop mark, turning off.

[0013] Medical devices such as magnetic therapy devices equipped with a tactile switch as a power switch or alarm stop switch have a reversing spring, such as a metal dome, inside the power switch or alarm stop switch to provide a "click" sensation when the medical device operator presses the switch. For this reason, medical devices equipped with a tactile switch are required to have an extremely complex internal structure. Furthermore, medical devices equipped with a tactile switch require a light guide path inside the device body through which light generated from a light-emitting element passes in order to display the periphery of the power switch cover or a power mark, etc.

[0014] The present invention has been made in view of these technical circumstances and aims to provide a medical device that is excellent in drip resistance (IPX), protection against electrostatic discharge and surges (ESD), and protection against electromagnetic interference (EMS), and that can form a light guide path through which light generated from a light-emitting element passes in order to form a power mark or alarm stop mark that indicates a power switch or alarm stop switch. [Means for solving the problem]

[0015] To solve the above problems, the present invention provides a medical device comprising a device body having a power switch, wherein the power switch comprises a power switch cover, a first gasket, and a first light-emitting element provided on a power switch substrate, the first gasket is interposed between the power switch cover provided on the outside of the device body and the first light-emitting element provided on the power switch substrate, the first light-emitting element is provided on the inside of the device body relative to the first gasket, and a first light-guiding path is provided through which light generated from the first light-emitting element passes to the outside of the device body.

[0016] Furthermore, the medical device of the present invention has the following features: (a) The main body of the device further has an alarm stop switch, the alarm stop switch having an alarm stop switch cover, a second gasket, and a second light-emitting element provided on an alarm stop switch substrate, the second gasket being interposed between the alarm stop switch cover provided on the outside of the main body of the device and the second light-emitting element provided on the alarm stop switch substrate, the second light-emitting element being provided on the inside of the main body of the device beyond the second gasket, and a second light-guiding path being provided through which light generated from the second light-emitting element passes to the outside of the main body of the device; (b) At least one of the power switch and the alarm stop switch is a tactile switch; (c) The first light-guiding path is formed so that at least one of the peripheral edge of the power switch cover and the power mark indicating the power switch is displayed; and the second light-guiding path is provided through the A (d) The alarm stop switch cover is formed so that at least one of the peripheral edge of the alarm stop switch cover and the alarm stop mark that indicates the alarm stop switch is displayed; (e) The waterproof rating (IPX) is 1 or higher; (f) The device has electrostatic discharge resistance even after the static electricity has been discharged based on an electrostatic discharge test; (g) The electrostatic discharge resistance is ±15kV or higher for air electrostatic discharge resistance; (h) The device further comprises a probe formed separately from the main body of the device, which generates a biostimulation signal wave, and irradiates the affected area of ​​the body with a magnetic field for stimulating the affected area generated by the biostimulation signal wave in a coil to stimulate cells and nerves in and around the affected area to treat pain in the affected area. [Effects of the Invention]

[0017] The present invention provides a medical device that is excellent in drip resistance (IPX), protection against electrostatic discharge and surges (ESD), and protection against electromagnetic interference (EMS), and has a light guide path formed through which light generated from a light-emitting element passes in order to form the peripheral edge of the power mark on the power switch cover, the power mark that indicates the power switch, etc. That is, with the medical device of the present invention, a first gasket interposed between the power switch cover provided on the outside of the device body and the first light-emitting element provided on the power switch substrate prevents moisture from entering the inside of the device body from the power switch of a medical device such as a magnetic therapy device, which would degrade its insulation performance and prevent ground faults or leakage accidents. Furthermore, with the medical device of the present invention, a light guide path can be formed through which light generated from a light-emitting element passes in order to form the peripheral edge of the power mark on the power switch cover or the power mark that indicates the power switch, etc.

[0018] Furthermore, in the medical device of the present invention, the airtightness of the power switch is ensured by a first gasket interposed between the power switch cover and the first light-emitting element provided on the power switch circuit board, preventing dust from adhering to the drive unit inside the device body from the power switch, thus preventing malfunctions of medical devices such as magnetic therapy devices. In other words, the medical device of the present invention is excellent in terms of drip resistance (IPX), electrostatic discharge and surge (ESD) countermeasures, and electromagnetic interference (EMS) countermeasures, and at the same time, a light guide path is formed through which light generated from the light-emitting element passes in order to make the peripheral edge of the power mark on the power switch cover or the power mark indicating the power switch clearly visible, so the peripheral edge of the power mark on the power switch cover and the power mark indicating the power switch are clearly displayed. [Brief explanation of the drawing]

[0019] [Figure 1] This is a perspective view showing the overall appearance of a magnetic therapy device according to one embodiment of the present invention. [Figure 2] This is a front view showing the external appearance of the main body of the magnetic therapy device according to the above embodiment. [Figure 3]It is a schematic diagram showing the configuration of the power switch included in the magnetic therapy device of the above embodiment and each member included in the power switch. Fig. 3(a) is a schematic diagram showing the configuration of the power switch and each member included in the power switch as viewed from the front of the power switch cover of the device main body, and Fig. 3(b) is a schematic diagram showing the configuration of the power switch and each member included in the power switch as viewed from the back of the device main body. [Figure 4] It is a schematic diagram showing the structure of the first gasket included in the power switch included in the magnetic therapy device of the above embodiment. Fig. 4(a) is a perspective view as viewed from the inner side (diffusion film side) of the device main body. Fig. 4(b) is a perspective view as viewed from the outer side (power switch side) of the device main body. [Figure 5] It is a cross-sectional view showing the internal structure of the power switch included in the device main body of the magnetic therapy device of the above embodiment. [Figure 6] It is a cross-sectional view showing the structure of the power switch included in the magnetic therapy device of the above embodiment and the light guiding path by the light emitting element formed in the power switch.

Embodiments for Carrying out the Invention

[0020] Hereinafter, the medical device according to the present embodiment will be described in detail based on the drawings. Each drawing is schematic and may be different from the actual one. Further, the following embodiments illustrate devices for embodying the technical idea of the present invention, and their configurations are not limited to the following. That is, the technical idea of the present invention can be variously modified within the technical scope described in the claims.

[0021] Figure 1 is a perspective view showing the overall appearance of a magnetic therapy device 100, which is an example of a medical device according to one embodiment of the present invention. Here, a medical device is a device whose manufacture and sale are regulated by the Pharmaceuticals and Medical Devices Act, and examples include magnetic therapy devices, blood glucose meters, home-use electrotherapy devices, home-use massage devices, and electronic blood pressure monitors. In this embodiment, as an example, a magnetic therapy device, which is a medical device equipped with switches such as a power switch and an alarm stop switch, will be described. As shown in Figure 1, the magnetic therapy device 100 according to this embodiment comprises a device body 101, a probe 102, a communication cable 103 connecting the probe 102 to the device body 101, and a power cable (not shown) that is detachably plugged into and attached to the device body 101.

[0022] The magnetic therapy device 100 of this embodiment generates a biostimulation signal wave, and the magnetic field generated by the biostimulation signal wave in a coil is irradiated onto the affected area of ​​the body to stimulate the cells in the affected area, thereby treating pain in the affected area. It is a magnetic therapy device that is waterproof (IPX), has excellent protection against electrostatic discharge and surges (ESD), and electromagnetic interference (EMS), and can form a light guide path through which light generated from a light-emitting element passes in order to form the periphery of the power switch cover or a power mark indicating the power switch. The magnetic therapy device 100 is a medical device equipped with a device body having a power switch, and the power switch has a power switch cover, a first gasket, and a first light-emitting element provided on a power switch circuit board. The following describes each component of the magnetic therapy device of this embodiment.

[0023] The main body 101 of the magnetic therapy device 100 comprises a resin casing 104 and a touch-input type (capacitive type) display 105 housed diagonally upward within the casing 104 and exposed through an opening 104a on the front of the casing 104. Inside the protruding portion 104b on the lower rear side of the casing 104 is a battery 106 for supplying the power necessary to operate the magnetic therapy device 100. The specifications of the battery 106 can be set as appropriate.

[0024] The magnetic therapy device 100 is connected to the signal wave output section by a communication cable 103 and includes a probe 102 that is formed separately from the main body 101 of the device. The probe 102 is a component that is applied to the affected area of ​​the body when using the magnetic therapy device 100 of this embodiment to generate a magnetic field and irradiate the affected area with the magnetic field to treat pain in the affected area. The magnetic therapy device 100 only needs to have at least one probe 102, and the number of probes 102 may be increased as needed.

[0025] The magnetic therapy device 100 of this embodiment has a probe 102 that is separate from the main device body 101. Therefore, by applying only the probe 102 to the affected area of ​​the body, the magnetic field generated by the main device body 101 can be irradiated onto the affected area. Here, the probe 102 does not house the signal wave generation unit and the power supply unit. Therefore, the probe 102 can be designed to be more compact than the main device body 101. As a result, when using the magnetic therapy device 100, the probe 102 is not bulky, does not get caught on clothing, and does not fall off the affected area.

[0026] Figure 2 is a front view showing the external appearance of the main body of the magnetic therapy device according to this embodiment. As shown in Figure 2, an alarm stop button 107 and a power switch button 108 are provided on the left and right sides below the opening 104a on the front of the casing 104 of the main body 101. Further below the alarm stop button 107 and the power switch button 108, three sockets for plugging in a communication cable 103 are provided side by side to allow connection of three probes 102 to the main body 101. The number of sockets can be appropriately set depending on the number of probes 102 to be installed.

[0027] Figure 3 is a schematic diagram showing the configuration of the power switch and the components constituting the power switch in the magnetic therapy device according to this embodiment. Figure 3(a) is a schematic diagram showing the configuration of the power switch and the components constituting the power switch when viewed from the front of the device body. Figure 3(b) is a schematic diagram showing the configuration of the power switch and the components constituting the power switch when viewed from the rear of the device body. As shown in Figures 3(a) and (b), the device body 101 of the magnetic therapy device 100 according to this embodiment is equipped with a power switch 109. The power switch 109 has a power switch button 108 that is exposed on the outside of the casing 104 that constitutes the device body 101. The power switch 109 is not particularly limited as long as it is a switch that can be pressed by the operator of the magnetic therapy device, but it is preferable that it be a tactile switch 116 from the viewpoint of being able to reliably confirm the ON and OFF states of the switch. The operator of the magnetic therapy device 100 can turn ON the power to the device body 101 by pressing the power switch button 108 equipped with a tactile switch 116. Furthermore, the operator of the magnetic therapy device 100 can turn off the power to the device body 101 by pressing the power switch button 108, which is equipped with a tactile switch 116, again.

[0028] The tactile switch 116 used in the power switch 109 is a momentary type microcurrent switch that turns ON only when pressed by the operator, and is characterized by providing tactile feedback ("click feeling") when the switch is pressed (push operation). When the operator presses the power switch button 108, a small current flows through the electrical circuit of the tactile switch 116. The "click feeling" realized by the power switch 109 provided in the main body 101 of the magnetic therapy device 100 in this embodiment is realized by a reversal spring provided inside the power switch 109. The size of the operator's operating stroke and the sharpness of the click feeling change depending on the material and shape of the reversal spring.

[0029] The planar shape of the power switch button 108 is not particularly limited, as long as it is a shape that is easy for the operator of the magnetic therapy device 100 to operate. The power switch button 108 may have a gently concave shape from its outer edge toward its center so that the fingertips of the operator of the magnetic therapy device 100 can easily fit onto the power switch button 108, and the overall shape may be concave toward the inside of the device body 101.

[0030] The power switch 109 comprises, in the order from the casing 104 toward the inside of the device body 101, a power switch button 108 exposed on the outside of the casing 104, a power switch cover 110, a first gasket 111, a diffusion film 112, a power switch substrate 113, a power switch substrate clamping member 114, a first light-emitting element 115, a tactile switch 116, and a connector 117. The tactile switch 116 includes a tactile switch operating part 117 that contacts a protrusion 110a on the back of the power switch cover when the operator of the magnetic therapy device 100 presses the power switch button 108. Among these components, the diffusion film 112 can be omitted, for example, by forming the light guide path through which light generated from the light-emitting element passes with a surface that easily scatters light, such as by making it milky white or textured. In the following explanation, we will describe the case where the power switch 109 is equipped with a diffusion film 112, from the viewpoint of reliably forming a light guide path 120 through which the light 119 generated from the first light-emitting element 115 passes.

[0031] The power switch 109 is constructed by assembling and inserting the above-mentioned components. The power switch cover 110 has a substantially circular planar shape. The power switch cover 110 has a power switch cover back projection 110a that is provided opposite the first gasket 111 and protrudes in an annular (ring-shaped) manner. Furthermore, the power switch cover 110 has a power switch cover front projection 110b that is provided opposite the power switch button 108 and protrudes in an annular manner. The power switch cover front projection 110b is in contact with the outer edge of the power switch button 108. Therefore, when the operator of the magnetic therapy device 100 presses the power switch button 108, the power switch cover front projection 110b becomes the point of action, and the force from the operator of the magnetic therapy device 100 is transmitted to the tactile switch operating section 117 through the power switch cover back projection 110a. The power switch cover 110 may be formed integrally with the casing 104.

[0032] The first gasket 111 is interposed between the power switch cover 110 and the diffusion film 112. The first gasket 111 is a component used to ensure the airtightness of the power switch 109 and to provide the magnetic therapy device 100 with drip-proof (IPX) properties. The planar shape of the first gasket 111 is approximately circular. A first gasket insertion hole 111a is provided in the center of the first gasket 111 for fitting the first gasket 111 into the protrusion 110a on the back of the power switch cover 110. By fitting the first gasket insertion hole 111a into the protrusion 110a on the back of the power switch cover, the first gasket 111 is fitted into the casing 104 into which the power switch cover 110 is fitted. Here, it is preferable to use a transparent material or a material that easily diffuses light as the material of the first gasket 111. The reason is that if the material of the first gasket 111 is transparent or easily diffuses light, it forms a light guide path through which the light generated from the first light-emitting element 115, such as an LED, can pass, making it easier for the light generated from the first light-emitting element 115 to pass through to the outer surface of the power switch button 108 exposed outside the casing 104.

[0033] If the power switch 109 is equipped with a diffusion film 112, the diffusion film 112 is interposed between the first gasket 111 and the power switch substrate 113. The diffusion film 112 is a film for diffusing the light generated from the first light-emitting element 115. That is, the diffusion film 112 acts as a light diffusion film that absorbs the light generated by the first light-emitting element 115 as incident light and optimally diffuses the incident light. By using the diffusion film 112, it is possible to achieve brighter displays such as the peripheral portion 108b of the power mark on the power switch cover 110 that displays the power switch button 108, or the power mark 108a that displays the power switch, and the power mark can also be made colorized. The planar shape of the diffusion film 112 is approximately rectangular. A diffusion film insertion hole 112a is provided in the center of the planar shape of the diffusion film 112 for inserting the diffusion film 112 into the protrusion 110a on the back of the power switch cover 110. When the diffusion film 112 is inserted into the protrusion 110a on the back of the power switch cover, the diffusion film 112 is fitted between the first gasket 111 and the power switch substrate 113. As described above, the diffusion film 112 can be omitted by using a transparent material or a material that easily diffuses light for the first gasket 111, and by processing the light guide path through which the light generated from the first light-emitting element 115 passes to a surface that easily scatters light.

[0034] The power switch board 113 is mounted in the direction of the inside of the device body 101. A tactile switch 116 is provided on the front of the power switch board 113, which faces the diffusion film 112, and an electrical circuit for supplying current to the first light-emitting element 115 is formed inside the tactile switch 116. When current flows to the first light-emitting element 115 through the electrical circuit, light 119 is generated from the first light-emitting element 115. The light 119 generated from the first light-emitting element 115 is absorbed by the diffusion film 112 as incident light. This incident light is diffused by the diffusion film 112. Furthermore, if the material of the first gasket 111 is transparent or easily diffuses light, the incident light is diffused by the first gasket 111.

[0035] Multiple first light-emitting elements 115 may be installed around the tactile switch 116 mounted on the power switch board 113, and may be installed at predetermined intervals. The first light-emitting elements 115 may also be multiple chip-type LEDs surface-mounted on the power switch board 113. That is, surface-mount chip-type LEDs are thin chip-type LEDs that can illuminate a brighter and wider angle than so-called bullet-type LEDs. Surface-mount chip-type LEDs have almost the same degree of freedom and flexibility as bullet-type LEDs in terms of dimming and color tuning. Surface-mount chip-type LEDs have a thin and flat shape and can diffuse and radiate the generated light in multiple directions. Furthermore, the irradiation angle of surface-mount chip-type LEDs can be extended to a maximum of 140°, compared to 40-60° for bullet-type LEDs. For this reason, it is preferable to use surface-mount chip-type LEDs as the first light-emitting elements 115.

[0036] The power switch board 113, on which the first light-emitting element 115 and the tactile switch 116 are provided, is held in place by two power switch board clamping members 114. The power switch board clamping members 114 consist of a power switch board clamping member 114 provided on the front side of the power switch board 113 facing the diffusion film 112, and a power switch board clamping member 114 provided on the back side of the power switch board 113 not facing the diffusion film 112. The power switch board clamping members 114 clamp the front side of the power switch board 113 facing the diffusion film 112 and the back side of the power switch board 113 not facing the diffusion film 112. A circular power switch board clamping member insertion hole is formed in the center of the planar part of the power switch board clamping member 114, matching the outer edge shape of the power switch cover 110. The two power switch board clamping members 114 are fixed together by fastening members such as screws screwed into through holes that penetrate these members.

[0037] Figure 4 is a schematic diagram showing the structure of the first gasket 111 included in the power switch 109 of the magnetic therapy device 100 according to this embodiment. Figure 4(a) is a perspective view taken from the inside side (diffusion film 112 side) of the device body 101. As shown in Figure 4(a), the first gasket 111 has a first gasket outer edge end 111b that protrudes toward the power switch cover 110 at its outer edge. The outer edge end 111b of the first gasket has an annular convex shape that protrudes toward the power switch cover 110. The first gasket insertion hole 111a is fitted into the convex portion 110a on the back of the power switch cover, thereby engaging with the recess of the casing 104 into which the power switch cover 110 is fitted. The back surface of the first gasket 111 facing the diffusion film 112 is a smooth surface without irregularities in order to increase the contact area when it is in close contact with the diffusion film 112.

[0038] Figure 4(b) is a perspective view of the first gasket 111 as seen from the outside of the device body 101 (outside the power switch button 108). As shown in Figure 4(b), the first gasket 111 has a first gasket flat portion 111c inside the first gasket outer edge end 111b. The first gasket flat portion 111c is formed to be concave relative to the power switch cover 110 so that the annular protrusion of the casing 104 to which the power switch cover 110 is attached can be fitted. After the first gasket flat portion 111c is fitted onto the back surface of the power switch cover 110, which is the surface facing the first gasket 111, it is in close contact with the power switch cover 110 by a fastening means 111d such as double-sided tape. In order to ensure that the first gasket flat portion 111c is in close contact with the back surface of the power switch cover 110, the surface of the first gasket flat portion 111c may be given irregularities to match the shape of the back surface of the power switch cover 110 to form the first gasket stepped portion. Specifically, the surface of the first gasket flat portion 111c that is in close contact with the front protrusion 110b of the power switch cover may be formed by creating a recess.

[0039] The material of the first gasket 111 is not particularly limited as long as it is a material with excellent processability, water repellency, and electrostatic discharge prevention performance. Examples of materials that can be used as the first gasket 111 include rubbers such as natural rubber, nitrile rubber (NBR), butyl rubber, silicone rubber, fluororubber, ethylene propylene diene rubber (EPDM), and fluororubber; plastics such as polytetrafluoroethylene resin (PTFE, Teflon® resin), polyether ether ketone, polyphenylene sulfide, polyoxymethylene, vinyl chloride (PVC), acrylic resin, silicone resin, and acrylonitrile styrene resin; and elastomers such as olefin-based thermoplastic elastomers, styrene-based thermoplastic elastomers, vinyl chloride-based thermoplastic elastomers, urethane-based thermoplastic elastomers, polyester-based thermoplastic elastomers, and polyamide-based thermoplastic elastomers. Among these materials that can be used as the first gasket 111, vinyl chloride (PVC), acrylic resin, silicone resin, and acrylonitrile styrene resin are preferred as they are transparent or easily diffuse light.

[0040] Figure 5 is a cross-sectional view showing the internal structure of the power switch 109 provided in the main body 101 of the magnetic therapy device 100 according to this embodiment. As shown in Figure 5, the power switch 109 provided in the main body 101 of the magnetic therapy device 100 according to this embodiment includes a power switch button 108, a power switch cover 110, a first gasket 111, a diffusion film 112, a power switch substrate 113, a power switch substrate clamping member 114, a first light-emitting element 115, a tactile switch 116, and a connector 118, all of which are exposed on the outside of the casing 104 that constitutes the main body 101. These components are fitted together and bonded together by adhesive means such as an adhesive. Note that among these components, the diffusion film 112 can be omitted, for example, by forming the light guide path through which light generated from the light-emitting element passes with a surface that is easily scattered, such as by making it milky white or textured.

[0041] In the power switch 109, the casing 104 constituting the device body 101 and the first gasket 111 are bonded together by the first gasket 111, which is generally made of a soft material, being pressed against the casing 104 and tightened. Therefore, if the material constituting the first gasket 111 is flexible, it is not necessary to use an adhesive to bond the first gasket 111 and the casing 104. On the other hand, if the material constituting the first gasket 111 is not flexible, the casing 104 and the first gasket 111 may be bonded together using an adhesive or the like. The casing 104 and the first gasket 111 are bonded together after the recess of the casing 104 and the protrusion of the outer edge end 111b of the first gasket are fitted together. Furthermore, the front protrusion 110b of the power switch cover and the first gasket 111 are sealed together by a fastening means 111d such as double-sided tape attached to the flat surface 111c of the first gasket. Examples of double-sided tapes include silicone tape, Teflon® tape, polyimide tape, and acrylic tape.

[0042] As described above, the power switch 109 in the magnetic therapy device 100 of this embodiment can be made airtight by bonding the first gasket 111 to the casing 104 and sealing the first gasket 111 to the power switch cover 110. As a result, the magnetic therapy device 100 of this embodiment is equipped with a power switch 109 with excellent airtightness, so it can effectively prevent water and moisture from entering through gaps formed in the power switch 109.

[0043] In other words, the magnetic therapy device 100 of this embodiment has excellent drip resistance because the first gasket 111 completely seals the gap formed in the power switch 109, thereby effectively preventing moisture from entering the gap. Drip resistance refers to protection against dripping water. For example, drip resistance (IPX) can be evaluated using a dripping test device, for example, by performing vertical dripping of water at a dripping rate of 1.0 mm / min for 10 minutes. The magnetic therapy device 100 of this embodiment has at least 1 or more levels of drip resistance (IPX) because the first gasket 111 completely seals the gap formed in the power switch 109.

[0044] Figure 6 is a cross-sectional view showing the structure of the power switch of the magnetic therapy device of this embodiment and the light guide path of the light emitted by the first light-emitting element formed on the power switch. As shown in Figure 6, the magnetic therapy device 100 of this embodiment can completely seal the gap formed in the power switch 109 with the first gasket 111, and at the same time, it can form a light guide path 120 through which the light 119 emitted from the first light-emitting element 115 passes to the outside of the device body 101. The light guide path 120 is provided so as to be able to display the power switch mark 108a and the peripheral edge 108b of the power mark on the power switch cover 110.

[0045] The power switch button 108 displays a power switch mark 108a and the peripheral edge 108b of the power mark on the power switch cover 110. Preferably, the parts of the power switch button 108 corresponding to the power switch mark 108a and the peripheral edge 108b of the power mark on the power switch cover 110 are transparent so that the light 119 generated by the first light-emitting element 115 can pass through. Furthermore, the power switch mark 108a and the peripheral edge 108b of the power mark on the power switch cover 110 can be appropriately set according to the form of the magnetic therapy device 100. Specifically, examples of the power switch mark 108a and the peripheral edge 108b of the power mark on the power switch cover 110 include the IEC5009 Standby Symbol, IEC5007 Standby Symbol, IEC5008 Standby Symbol, IEC5009 Standby Symbol, IEC5010 Standby Symbol, and IEC60417 Standby Symbol defined by the International Electrotechnical Commission, and examples of these Standby Symbols include those with an outer frame, and those with the words "power" added. In this way, the shape of the power switch mark 108a and the peripheral portion 108b of the power mark on the power switch cover 110 can be appropriately set according to the shape displayed by the power switch button 108.

[0046] The materials constituting the power switch mark 108a displayed on the power switch button 108 and the peripheral portion 108b of the power mark on the power switch cover 110 are not particularly limited, as long as they can transmit the light 119 generated by the first light-emitting element 115. Examples of materials constituting the power switch mark 108a and the peripheral portion 108b of the power mark on the power switch cover 110 include inorganic glass, acrylic resin, polycarbonate, polystyrene resin, styrene-acrylonitrile resin, and silicone resin.

[0047] In this embodiment, the power switch 109 provided in the main body 101 of the magnetic therapy device 100 has a light guide path 120 formed in it, which allows light 119 generated from the first light-emitting element 115 to reach the power switch mark 108a displayed on the power switch button 108 and the peripheral edge 108b of the power mark on the power switch cover. The light guide path 120 is formed between the first light-emitting element 115, which is a component of the power switch 109, the diffusion film 112, the first gasket 111, and the power switch cover 110. The light 119 that has passed through the light guide path 120 formed inside the power switch cover 110 is emitted to the outside of the casing 104 via the power switch mark 108a and the peripheral edge 108b of the power mark on the power switch cover 110. The light 119 emitted to the outside of the casing 104 illuminates the power switch mark 108a on the power switch button 108 and the peripheral edge 108b of the power mark on the power switch cover.

[0048] Thus, in this embodiment, the magnetic therapy device 100's main body 101 is protected by a first gasket 111 interposed between the power switch cover 110 provided on the outside of the main body 101 and the power switch circuit board 113 on which the first light-emitting element is provided. This prevents moisture from entering the main body 101 from the power switch 109 of the magnetic therapy device 100, thus preventing deterioration of its insulation performance and preventing ground faults or leakage accidents. Furthermore, according to the magnetic therapy device 100 of the present invention, a light guide path 120 can be secured through which light 119 generated from the first light-emitting element 115 passes in order to form a power switch mark 108a that indicates the power switch 109 using a tactile switch 116. Thus, the main body 101 of the magnetic therapy device 100 of this embodiment is equipped with a first gasket 111 interposed between the power switch cover 110 and the power switch board 113 on which the first light-emitting element 115 is provided. As a result, it has excellent drip-proof properties (IPX), can secure a light guide path 120 through which the light 119 generated from the first light-emitting element passes, and has a power switch 109 on which the power switch mark 108a and the peripheral edge 108b of the power mark are clearly displayed.

[0049] Furthermore, the main body 101 of the magnetic therapy device 100 in this embodiment may further include an alarm stop switch, which includes an alarm stop button 107. That is, the main body 101 comprises a power switch 109 and an alarm stop switch. The structure of the alarm stop switch is substantially the same as that of the power switch 109. The alarm stop switch includes an alarm stop switch cover, a second gasket, and a second light-emitting element provided on the alarm stop switch substrate.

[0050] The second gasket is interposed between the alarm stop switch cover, which is located on the outside of the device body 101, and the alarm stop switch board on which the second light-emitting element is located. The second light-emitting element is located on the inside of the device body 101, further than the second gasket, and a second light guide path is formed through which the light generated from the second light-emitting element passes to the outside of the device body 101. In other words, the alarm stop switch corresponds to the power switch 109, and the alarm stop switch cover and the second gasket correspond to the power switch cover 110 and the first gasket 111, respectively. Furthermore, the second light-emitting element located on the alarm stop switch board corresponds to the first light-emitting element 115 located on the power switch board 113.

[0051] Thus, in this embodiment, the main body 101 of the magnetic therapy device 100 is protected by a second gasket interposed between the alarm stop switch cover provided on the outside of the main body 101 and the alarm stop switch substrate on which the second light-emitting element is provided. This prevents moisture from entering the main body 101 from the alarm stop switch of the magnetic therapy device, thus preventing deterioration of its insulation performance and preventing ground faults or leakage accidents. Furthermore, according to the magnetic therapy device of the present invention, a second light guide path can be formed through which light generated from the light-emitting element passes in order to form an alarm stop switch mark that displays the alarm stop switch using a tactile switch. In other words, the main body 101 of the magnetic therapy device 100 in this embodiment is equipped with a second gasket interposed between the alarm stop cover and the alarm stop switch substrate on which the second light-emitting element is provided. This provides excellent drip-proofness (IPX) and allows for the formation of a light guide path through which light generated from the second light-emitting element passes. As a result, the alarm stop switch has an alarm stop mark peripheral portion on the alarm stop switch cover and an alarm stop switch that clearly displays the alarm stop mark.

[0052] Although the above description is based on the illustrated embodiments, the medical device of this invention is not limited to the magnetic therapy device according to the above embodiments and can be modified as appropriate within the scope of the claims. For example, in the main body 101 of the magnetic therapy device 100, which is an example of the medical device of this embodiment, modifications may be made as necessary to generate a magnetic field for stimulating the affected area in the coil using a biostimulation signal wave.

[0053] For example, the main body 101 of the magnetic therapy device 100 of this embodiment may have a signal wave output unit that generates and outputs a biostimulation signal wave of a first frequency, and may also have a first coil connected to the signal wave output unit by a communication cable, to which the biostimulation signal wave of the first frequency output from the signal wave output unit is supplied. Furthermore, in the main body 101 of the magnetic therapy device 100 of this embodiment, the frequency fluctuation of the biostimulation signal wave of the first frequency output from the signal wave output unit may be within a predetermined range with a center frequency of 250 MHz. In addition, in the main body 101 of the magnetic therapy device 100, which is an example of a medical device of this embodiment, the signal wave output unit may generate and output a biostimulation signal wave of a second frequency, and may also have a second coil to which the biostimulation signal wave of the second frequency output from the signal wave output unit is supplied. The biostimulation signal wave of the second frequency may be set to a low-frequency biostimulation signal wave of 1 kHz or more and 3 kHz or less. A low-frequency alternating magnetic field is generated from the biostimulation signal wave of the second frequency. The generated low-frequency alternating magnetic field is particularly likely to travel through sensory nerves to the brain via the spinal cord's dorsal horn, and is therefore expected to produce greater analgesic and relaxing effects, as well as other neurological disorders. [Industrial applicability]

[0054] Thus, according to this invention, the airtightness of the power switch is ensured by a first gasket interposed between a power switch cover provided on the outside of the main body of the device and a first light-emitting element provided on the power switch circuit board, providing excellent drip-proof (IPX), electrostatic discharge / surge (ESD) protection and electromagnetic interference (EMS) protection. Furthermore, a light guide path is formed through which light generated from the light-emitting element passes in order to form the peripheral area of ​​the power mark on the power switch cover and the power mark that indicates the power switch. For this reason, the medical device of this invention is industrially useful as a magnetic therapy device equipped with switches such as a power switch and an alarm stop switch, a blood glucose meter, a home-use electric potential therapy device, a home-use massager, an electronic blood pressure monitor, etc.

[0055] Although the present invention has been described above with reference to embodiments, the present invention is not limited to the above embodiments. Various modifications to the structure and details of the present invention can be made, as can be understood by those skilled in the art within the technical scope of the present invention. [Explanation of Symbols]

[0056] 100 Magnetic Therapy Devices 101 Main unit of the device 102 probes 103 Communication Cable 104 Casing 104a Casing opening 104b Casing protrusion 105 displays 106 batteries 107 Alarm stop button 108 Power switch button 108a Power switch mark 108b Periphery of the power mark 109 Power switch 110 Power switch cover 110a Power switch cover, rear protrusion 110b Power switch cover front protrusion 111 First Gasket 111a First gasket insertion hole 111b Outer edge of the first gasket 111c First gasket flat surface 111d Fixing means 112 Diffusion film 112a Diffusion film insertion hole 113 Power switch board 114 Member for clamping power switch circuit board 115 First light-emitting element 116 Tactile switch 117 Tactile switch operating section 118 connector 119 light 120 Light guide path (inside switch cover)

Claims

1. A medical device comprising a main body with a power switch, The power switch comprises a power switch cover, a first gasket, and a first light-emitting element provided on the power switch circuit board. The first gasket is interposed between the power switch cover, which is provided on the outside of the main body of the device, and the first light-emitting element, which is provided on the power switch circuit board. A first gasket insertion hole is formed in the center of the first gasket's plane, and a power switch cover back projection formed on the back of the power switch cover is fitted into the first gasket insertion hole. The first gasket has a first gasket outer edge that protrudes toward the power switch cover, and the first gasket outer edge is fitted into a recess in the casing into which the power switch cover is fitted. The medical device is characterized in that the first light-emitting element is provided on the inside of the device body relative to the first gasket, and a first light guide path is provided through which light generated from the first light-emitting element passes to the outside of the device body.

2. The aforementioned device body further includes an alarm stop switch. The alarm stop switch comprises an alarm stop switch cover, a second gasket, and a second light-emitting element provided on the alarm stop switch circuit board. The second gasket is interposed between the alarm stop switch cover, which is provided on the outside of the main body of the device, and the second light-emitting element, which is provided on the alarm stop switch circuit board. The second light-emitting element is located on the inside side of the device body, beyond the second gasket. The medical device according to claim 1, further characterized in that a second light guide path is provided through which light generated from the second light-emitting element passes to the outside of the main body of the device.

3. The medical device according to claim 1 or 2, characterized in that at least one of the power switch and the alarm stop switch is a tactile switch.

4. The first light guide path is formed such that at least one of the power mark periphery of the power switch cover and the power mark indicating the power switch is displayed. The medical device according to any one of claims 1 to 3, characterized in that the second light guide path is formed so that at least one of the peripheral edge of the alarm stop mark on the alarm stop switch cover and the alarm stop mark that indicates the alarm stop switch is displayed.

5. The medical device according to any one of claims 1 to 4, characterized in that the first light-emitting element consists of a plurality of chip-type LEDs surface-mounted on the power switch board, and the second light-emitting element consists of a plurality of chip-type LEDs surface-mounted on the alarm stop switch board.

6. A medical device according to any one of items 1 to 5, characterized in that it has a waterproof rating (IPX) of 1 or higher.

7. A medical device according to any one of claims 1 to 6, characterized in that it possesses electrostatic discharge resistance even after static electricity has been discharged based on an electrostatic discharge test.

8. The medical device according to claim 7, characterized in that the electrostatic discharge resistance is ±15kV or more in air.

9. A medical device according to any one of claims 1 to 8, further comprising a probe formed separately from the main body of the device, which generates a biostimulation signal wave, and treats pain in the affected area by irradiating the affected area of ​​the living body with a magnetic field for stimulating the affected area generated by the biostimulation signal wave in a coil to stimulate cells and nerves in and around the affected area.

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